The promotion and application of new energy vehicles in urban construction is an important mea-sure to promote the construction of ecological civilization in China.Energy conservation,emission reduc-tion and pollution control are the main objectives of its establishment.Based on the panel data of 280 prefecture-level cities in China from 2003 to 2019,this paper uses the difference-in-differences method to explore the effect and internal mechanism of the new energy vehicle promotion policy on environmental pollu-tion control.The results show that:first,the promotion and application of new energy vehicles in urban con-struction significantly reduce pollution emissions represented by industrial sulfur dioxide and industrial wastewater.Secondly,the analysis of the intermediary mechanism shows that the promotion and application of new energy vehicles in urban construction can reduce environmental pollution through technological innova-tion.Thirdly,there is heterogeneity in the promotion and application of new energy vehicles in terms of ur-ban economic level.The emission reduction effect of the promotion and application of new energy vehicles is more obvious in cities with higher economic development levels.The research results of this paper provide empirical support and theoretical basis for further promoting the promotion of new energy vehicles and im-proving the urban ecological environment.
关键词
新能源汽车/环境污染/双重差分/机制分析
Key words
New Energy Vehicles/Environmental Pollution/Difference-in-Differences Method/Mechanism Analysis
维普
万方数据